"it falls from the sky" yes, but no. rain is melted snow. when clouds are visible they are liquid so when it rains it actually means that when the snow was created the snow melted and became liquid and came as rain. hope I helped!
Osinda saves Oganda in the rain came He followed her when she travelled to the lake, he persuade her to run away with him and they covered themselves so the ancestors couldn't see them and then the rain came when they ran away together.